4M Green Science Enviro Battery
- Learn the science behind power! See how a potato, salt water and mud light up a bulb or sound a buzzer.
- The most unique and non-polluting energy sources you can find on earth
- The 4M Green Science Enviro Battery kit Contains: 3 zinc plates, 3 copper plates, connection wires, 3 plastic cups, a light tower, a LED lamp with connection wire, a sound chip with connection wire, an experiment record sheet, adhesive tape and detailed instructions, experiment guide for making a coin battery, a fork battery, a potato buzz wire game and more.
- Contains small parts.